#ifndef SECONDWINDOW2_H
#define SECONDWINDOW2_H

#include <QMainWindow>
#include"thirdwindow.h"
class secondwindow2 : public QMainWindow
{
    Q_OBJECT
public:
    explicit secondwindow2(QWidget *parent = nullptr);
    void paintEvent(QPaintEvent *);
public:
    thirdwindow * third = NULL;
signals:

    void second2Back();
};

#endif // SECONDWINDOW2_H
